Ectosexine
外表层
🗣️ 情景例句
Oh, I'm so excited!
噢， 我真是太兴奋了！
He gives twice that gives in a trice.
即刻就给予，等于给两次。
Bones were carved into needles and tools, and the teeth were used to make necklaces.
骨头则雕琢成针和工具，牙齿用来作项链。